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Finding the Fourth Proportional to 13,335, 20,002.86 and 4,101

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Solution

The fourth proportional to 13,335, 20,002.86 and 4,101 is: 6,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335 : 20,002.86 = 4,101 : x
  2. Step 2: Convert to fraction form
    13,335/20,002.86 = 4,101/x
  3. Step 3: Cross multiply
    13,335x = 20,002.86 × 4,101
  4. Step 4: Simplify right side
    13,335x = 82,031,728.86
  5. Step 5: Solve for x
    x = 82,031,728.86/13,335
  6. Step 6: Final answer
    x = 6,151.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.